Question

[Huỳnh Thanh Phong]

Tìm k biết : k x 1,2 + k x 8,4 + k + k x 0,6 =28

Answer 1

[Kirisaki Chitoge]

k = 2,5 nhé

kb nha

Answer 2

[Kurosaki Akatsu]

1,2k + 8,4k + 0,6k = 28

(1,2 + 8,4 + 0,6)k = 28

10,2k = 28

k = \(\frac{28}{10,2}=\frac{140}{51}\)